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Hangman Creek TMDL Implementation

Hangman Creek TMDL Implementation. Elaine Snouwaert – WA Department of Ecology Walt Edelen – Spokane Conservation District. Spokane River DO Advisory Group Meeting January 19, 2012. Overview. Ecology and Spokane Conservation District partnered on the project.

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Hangman Creek TMDL Implementation

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  1. Hangman Creek TMDL Implementation Elaine Snouwaert – WA Department of Ecology Walt Edelen – Spokane Conservation District Spokane River DO Advisory Group Meeting January 19, 2012

  2. Overview • Ecology and Spokane Conservation District partnered on the project. • Covers Fecal Coliform Bacteria, Temperature, and Turbidity (Sediment) impairments • Does not cover Dissolved Oxygen, pH (or set nutrient limits) • Implementation primarily addresses nonpoint source pollution and stormwater • Implementation expected to also reduce nutrients including phosphorus

  3. Schedule • TMDL efforts began in 2004 (study 2004-2005). • Data analysis and work with advisory group 2005-2008. • Spring 2009 published TMDL • September 2009 EPA approved TMDL • Worked with many implementation partners to develop Implementation Plan (completed May 2011)

  4. Implementation Focus Advisory Group Identified 11 primary issues: • Sediment/nutrientsfrom agricultural operations. • Sediment/fecal coliform from livestock and wildlife. • Nutrients/chemicals from residential uses. • Sediment/nutrientsfrom agricultural field ditches. • Nutrients/fecal coliform from improperly functioning septic systems. • Sedimentfrom gravel and summer roads. • Sedimentfrom sheer or undercut banks. • Sediment/fecal coliform from stormwater. • Sedimentfrom poor forestry management. • Sedimentfrom roadside ditching. • Solar heating from lack of riparian shade.

  5. Implementation Activities • Converting conventional farming tillage practices to direct seed tillage. • Implementing agricultural best management practices (BMPs) to reduce erosion. • Enhancing and restoring riparian buffers. • Managing livestock to prevent their waste from reaching streams. • Maintaining and repairing failing septic systems. • Stream bank restoration projects. • Following forest practice regulations when harvesting timber. • Education about water quality issues and the activities to address them.

  6. Implementation Partners • Avista Corporation • City of Spokane • Coeur d’Alene Tribe • Hangman Watershed Implementation Team • Inland Northwest Land Trust • The Lands Council • Natural Resources Conservation Service • Pine and Spokane Conservation Districts • Spokane County • Spokane Regional Health District • Spokane River Forum • Small Towns in the Watershed • Trout Unlimited and Spokane Fly Fishers • Washington Depts of Ecology, Natural Resources (forestry), Transportation (stormwater)

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